A prediction which is the opposite of the outcome desired by the person making it.

(juggling) A pattern performed with an odd number of props where each prop is caught by the opposite hand and thrown over the incoming prop, in contrast with the traditional cascade where the prop is thrown under.

(among word-game enthusiasts) Used to turn semordnilaps into palindromes.

(computing, dated) Inverse video.

A form of boustrophedon in which the page is rotated by 180 degrees after writing each line, so that alternate lines are upside down relative to one another.

The salinity gradient energy retrieved from the difference in the salt concentration between seawater and river water.

attributive form of reverse genetics

The practice of identifying the functions of known genes.

(juggling) A pattern involving carrying each object under the next object before throwing it to the opposite hand.

Third-person singular simple present indicative form of reverse-pickpocket